Null Exception in funlockfile

[cyanidearsenic]

Hi,
Hope this is the right forum section to post this since all the most recent threads seem to be about making mods but there are some asking for help with modded games.
I'm getting a CTD running Rimworld through Steam on Linux with lots of mods that I'm having trouble pinpointing. I added a few mods and took out a few and now I'm not sure which are new at all and, if that wasn't annoying enough, the crash doesn't seem tied to any particular action in-game as far as I can tell. It occurs at different times post-launch, in different saves (including new ones), with different things happening every time.
After finally figuring out why I couldn't find the log file (doesn't make it when you launch through Steam, apparently) I'm getting this at the bottom of my Player.log

Receiving unhandled NULL exception
#0  0x007fffdce47100 in funlockfile
#1  0x007fffdce47688 in (Unknown)
#2  0x007fffdce47698 in (Unknown)
#3  0x007fffdce476a8 in (Unknown)
#4  0x007fffdce476b8 in (Unknown)
#5  0x007fffdce476c8 in (Unknown)

I saw in another older thread here (https://ludeon.com/forums/index.php?topic=37241.45) that the issue was caused by a particular harmony patch? I wanted to try just taking out mods using that but I don't know how to figure out which mods would have that and the thread was so old I wasn't sure if I'd get in trouble for replying to it at this point.
I'll attach a modlist, the full player.log, and the debug log in case its something else and it just, coincidentally, happens to look like that problem. Oh, and the modlist probably looks silly and disorganized because I've been taking things out and putting them in to try and find the problem and now its just 'good enough that there aren't any big errors in the log'.
Thanks for any help.
Player.log : https://pastebin.com/5VCAiQjb
Debug Log : https://pastebin.com/puky7KVR

Further Note: I had to use pastebin for my logs because the 'share logs' thing in game wasn't working and I didn't register that the 'attachments and other options' thing was a button that would, if pressed, give me the option to add attachments. It's late/early and I'm tired, okay.